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Oksi-84 [34.3K]
3 years ago
6

What solid is generated when the right triangle is rotated about the line?

Mathematics
2 answers:
Alex777 [14]3 years ago
8 0
Your answer is a cone. B
LuckyWell [14K]3 years ago
3 0

Answer:

B) Cone

Step-by-step explanation:

Given a right triangle being rotated about the line.

without loss of generality, assume the left corner vertex is the origin and the horizontal line is x axis

WE have the line equation of the form y =mx which is rotated about x axis.

The top vertex forms a circle when rotated about x axis.  The origin becomes invariant, in other words, origin remains a point even after rotation.  

So we get a figure with top a point and base a circle symmetrical about middle line

This is nothing but a cone.

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Flauer [41]
The answer is C if you type the equation into y= on a graphing calculator. <3
3 0
3 years ago
The length of a rectangle is twice as long as the width. The area is 200ft to the power of 2. Find the length and the width of t
zimovet [89]

Answer:

Length = 20feet

Width = 10feet

Step-by-step explanation:

Area of a rectangle = LW

Perimeter P= 2(L+W)

L is the length

W is the width

If the length of a rectangle is twice as long as the width, then;

L = 2W

Substitute into the foemula

A  = (2W)W

A=  2W²  

If the area is 200ft², then;

200 = 2W²

100 = W²

W = √100

W = 10ft

Since L = 2W

L = 2(10)

L = 20ft

Hence the length of the rectangle is 20feet and the Width is 10feet

6 0
3 years ago
1. Jason bought a shirt for 30.00 he paid 15% in sales tax. What is the total
PolarNik [594]

Answer:

34.50

Step-by-step explanation:

multiply 30 times 0.15 to get 4.50 then just add that to 30 for 34.50

5 0
3 years ago
PLEASE HELP!!!!!!!!!!!!!
Svetllana [295]

Check the picture below.

well, g(x) + 1 is simply a vertical shift upwards of 1 unit, if the vertex before that had a y-coordinate of 4, then later on became 4+1 or 5, so the new vertex is simply (3 , 5).

4 0
3 years ago
Which is a composite number 21,43,29,37
Westkost [7]

Answer:

29

Step-by-step explanation:

it has more than 2 factors.

8 0
4 years ago
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